South Texas Skin Cancer Center Utilizes Innovative Treatments to Improve Outcomes for Patients

Offering state-of-the-art technology through Mohs micrographic surgery, the San Antonio clinic is making significant strides in treating skin cancer.


The American Academy of Dermatology Association (AAD) estimates that 1 in 5 Americans will develop skin cancer in their lifetime. Approximately 9,500 people in the U.S. are diagnosed with skin cancer daily. For patients, learning to understand skin cancer helps them find the best ways to treat the disease and build a life beyond the diagnosis.

In the field of dermatology, the South Texas Skin Cancer Center is making significant strides in offering innovative treatments and therapies for skin cancer patients and the resources needed to learn about the condition.

Founded in 2002 under the leadership of Medical Director Dr. Ryan O'Quinn, the center offers innovative solutions through Mohs Surgery to treat patients across San Antonio, the Texas Hill Country, and the entire South Texas region.

Mohs Micrographic Surgery

Mohs micrographic surgery, touted as the most effective technique for treating common skin cancers, is the gold standard for dermatologists looking to pair innovative treatments and the best outcomes for patients. As a highly specialized procedure for the complete removal of skin cancer, Mohs micrographic surgery differs from other surgical treatments thanks to its precision.

The surgical treatment involves having the tissue oriented, mapped, and color-coded after removal. Once removed, the mapped tissue is sent to the South Texas Skin Cancer Center's in-house laboratory so the Mohs surgeon can microscopically examine 100% of the margin. Through this process, the surgeon can remove every cancer cell. Standard pathologic techniques of non-Mohs surgical procedures examine only a portion of the margin and only provide an estimate of whether margins are clear.

Through dedication to innovation, precision, and care, patients can experience the most favorable outcomes to resume active and full lives. Mohs surgery cure rates are estimated to be approximately 99% for most skin cancers and around 95% for recurrent cancers where other treatments have been unsuccessful. Compared to other methods for untreated cancers, patients can expect a cure rate of about 88-90%; for recurring cancers, other methods provide a cure rate of only 50%.

Implementing Life-Saving Technology

Through this procedure, the center produces high-quality slides, a critical aspect of Mohs Surgery and Dr. O'Quinn's work through an on-site laboratory for the histologic preparation of tissue specimens. The innovation behind the surgery allows the slides to be examined the same day at the in-house histology lab to enable the pathologist to make an appropriate and complete diagnosis.

What is the advantage to patients? The wait time between diagnosis and treatment reduces while also eliminating the chance of finding a positive margin at another lab.

With a formula that involves the latest technology and comprehensive resources for patients, the center and Dr. O'Quinn have gained broad recognition in Texas. From 2008 to 2019, Dr. O'Quinn received the Patients' Choice Award 11 times, an honor awarded to physicians who have received "near perfect" scores from patients.


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